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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 2507747553

Certificate GIA 2507747553

Diamond specifications and retailer prices

From €5,827 EUR
$6,510 USD
As of October 28, 2026
Save €6,740 EUR (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €12,567 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507747553. Listed at 19 retailers as of October 28, 2026, with prices from €5,827 to €12,567, a €6,740 spread on the same certified stone. NZ Jewellers lists it at €12,567. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2507747553
Dimensions8.11 × 5.77 × 3.98 mm
L/W Ratio1.41
Top View
8.11 mm5.77 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507747553
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €12,567 EUR|Low: €5,827 EUR|High: €12,567 EUR|Avg: €7,889 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8€5,827 EUR
Retailer 3€6,284 EUR
Retailer 11€6,284 EUR
Retailer 10€6,807 EUR
Retailer 9€6,912 EUR
Retailer 4€7,034 EUR
Retailer 7€7,207 EUR
Retailer 6€7,747 EUR
Retailer 5€9,231 EUR
Retailer 2€10,472 EUR
NZ Jewellers€12,567 EUR

44 data points across 11 retailers

19 retailers€5,827 EUR to €12,567 EUR

B+
Cheapest Retailer
-
€5,827 EUR
$6,510 USD
B+
Retailer 2
-
€5,937 EUR
$6,633 USD
View
B
Retailer 3
-
€6,284 EUR
$7,020 USD
View
B
Retailer 4
-
€6,284 EUR
$7,020 USD
View
B
Retailer 5
-
€6,336 EUR
$7,079 USD
View
B
Retailer 6
-
€6,807 EUR
$7,605 USD
View
B
Retailer 7
-
€6,912 EUR
$7,722 USD
View
B
Retailer 8
-
€7,034 EUR
£6,188 GBP
View
Retailer 9
-
€7,207 EUR
A$12,386 AUD
View
Price last confirmed 10 days ago
B
Retailer 10
-
€7,448 EUR
$8,321 USD
View
B
Retailer 11
-
€7,510 EUR
$8,390 USD
View
B
Retailer 12
-
€7,510 EUR
$8,390 USD
View
B
Retailer 13
-
€7,567 EUR
$8,454 USD
View
B
Retailer 14
-
€7,747 EUR
View
B
Retailer 15
-
€7,760 EUR
$8,670 USD
View
B
Retailer 16
-
€7,854 EUR
$8,775 USD
View
B
Retailer 17
-
€9,231 EUR
ZAR 166,605 ZAR
View
B
Retailer 18
-
€10,472 EUR
£9,212 GBP
View
Most Expensive
C
NZ Jewellers
d28598f7-8273-41f0-a3c3-53f2e777a7d0 · Oct 30
€12,567 EUR
$14,040 USD
View
18 more retailers have this diamond
Prices start from €5,827 EURSave up to €6,740 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.50ct Radiant
€5,827 EUR